Side-by-side specifications of the Synology RS3618xs and SA3600, from official datasheets. Differences are highlighted.
| RS3618xs | SA3600 | |
| CPU | Intel Xeon D-1521 | Intel Xeon D-1567 |
| Cores / threads | 4/8 | 12-core |
| RAM (base) | 8 GB | 16 GB |
| RAM (max) | 64 GB | 128 GB |
| Drive bays | 12 | 12 |
| Expandable to | 36 | 180 |
| M.2 slots | 0 | 0 |
| Network | 4x1GbE | 4x1GbE + 2x10GbE |
| 10GbE | optional | yes |
| Max raw capacity | null | 1536 TB |
| Hot-swap | yes | yes |
| Form factor | rackmount 2U | 12-bay rackmount |
| Released | 2018 | 2023 |